Portable security alarm



FIG. 1 is a front perspective view shown in extended position, of aportable security alarm showing my new design;

FIG. 2 is a top plan view shown in closed position;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view taken from the right of FIG. 1;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a side elevational view taken from the left of FIG. 1;

FIG. 7 is a bottom plan view thereof.

The ornamental design for a portable security alarm, as shown anddescribed.